Samlex-america SAM-3000-12 User Manual download pdf (Page 22)

20 | SAMLEX AMERICA INC.

SAMLEX AMERICA INC. | 21

NOTE: Please refer to Table 6.1 for status of monitoring LEDs and Buzzer for various

protections / operational conditions explained below.

Over Temperature Protection

The unit is cooled by load-controlled fan. In case the fan fails or if the cooling is inad-

equateduetohigherambienttemperatureorrestrictedairow,thetemperatureof

hotspotinsidetheinverterwillexceedthesafetemperaturethresholdof88°Cto115°C

andtheunitwillautomaticallyshutdown.YellowLED"InputFault"willbeON&Green

LED"Power"willbeOFF.Theunitwillresetautomaticallyoncoolingdown10°Cto15°C

below threshold.

Low DC Input Voltage Protection

This condition is not harmful to the inverter but could damage the 12 V battery. The in-

verterautomaticallyshutsdownwheninputvoltagedropsto10.5±0.3V.YellowLED"

InputFault"willbeON,GreenLED"Power"willbeOFFandbuzzeralarmwillbesound-

ed. It will reset automatically when input voltage is restored to > 11.5V.

High DC Input Voltage Protection

Theinverterwillautomaticallyshutdownwhentheinputvoltageexceeds15.5V±0.2V.

Inputvoltageexceeding16voltscoulddamagetheinverter.YellowLED"InputFault"will

beONandGreenLED"Power"willbeOFF.Auto-resetat<15.5V±0.2V.

Overload / Short Circuit / Ground Fault Protection

The inverter will automatically shut down due to (a) short circuit conditions, (b) when

thecontinuous/surgepowerexceedsratedwattsand,(c)GroundFault.TheRedLED

"Overload"willbeONandGreenLED"Power"willalsobeON.Theunitwilllatchinshut

down condition. To reset, switch OFF the ON/OFF switch, wait for 3 minutes and switch

ON again.

In models SAM-2000-12 and SAM-3000-12, if load with power draw > 1725 VA/15A is

connected to 1 NEMA5-15R outlet, the 15A breaker on top of that receptacle will trip

(pop out). Reset manually (push in).

Info

Some high capacitive loads like Compact Fluorescent Lamps (CFL) or Switched Mode Power

Supply (SMPS) will draw very high inrush current due to very fast voltage rise of the square

wave nature of the Modied Sine Wave and shut down the inverter. Try using a small resistive

load in parallel to reduce high inrush current and prevent overloading.

SECTION 6 | Protections Monitoring

& Trouble-Shooting

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Samlex-america SAM-3000-12 User Manual Page 22